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Tech journalist since the dark ages. Windows Secrets, LangaList newsletter, Windows Magazine (NetGuide, Home PC), Byte, Popular Computing, yadda yadda yadda. Google me, if it matters.

This feed is mostly personal interest; it's NOT my professional writing. There's tech here, yes, but also lots of general science and some politics and weird humor thrown in.

Tuesday, June 17, 2014

Radar cross section of the Greenland Ice Sheet reveals skyscraper-sized formations

"Here's what the researchers think is occurring: Water that comes from melting at the bottom of the ice sheet, or water that streams down from the surface along crevasses and tubular shafts called moulins, refreezes at the bottom of the ice sheet. Over hundreds to thousands of years, the refreezing process warms, softens and warps the ice above the base of the ice sheet, creating the giant jellyroll-like structures discovered using radar. These structures could be up to 3,280 feet (1,000 m) in height, Bell said. They get bigger and are more common as the ice sheet narrows into the ice streams headed out to sea."

More: http://www.huffingtonpost.com/2014/06/17/greenland-ice-sculptures_n_5503710.html